. >> the work of the national security agency is under fire because of revelations by former n.s.a. analyst edward snowden. documents he leaked revealed the n.s.a. has been collecting phone calls and text messages of millions of american citizens. congressman who is the author of the patriot act has a new law to stop drag net collection of phone calls of american citizens, place stronger restrictions on who is targeted, and appoint a special advocate to protect privacy rights, but director of national intelligence, james clapper and n.s.a. director general keith alexander told the committee the content of phone calls remain secret, in a virtual lock box unless there is a link to possible terrorism and that he says is rare. >> they would only be looked at when we have reasonable suspicion to we had connection to a foreign al-qaeda or related terrorist group and look into that box. in 2012, we had 288 such selectors that we could go and look into that. that's it, of the billions of records, only 288. >> at the hearing, there was relatively little discussion about allegations that the